Mold for glass cylinders



- May 15,1924 v 1,494,042

W. G. TWYMAN MOLD FOR GLASS CYLINDERS Filed June 8, 1923 3 Sheets-Sheet 1 a 1\ J [J o l 'I o I449 (Q o o 0 Q (1| 0 0 /7 L o a t 0 o #51 Q o O F o F 1 WW/added:

May 13 1924 1,494,042

w. G. TWYMAN MOLD FOR GLASS CYLINDERS Filed June 8, 1923 C5 Sheets-Shegt 2 a I 5 l I O O v 9 I: o ligi 0 1 O o o Q u 0 Qt g s 2W detox neq May 13,1924. 1,494,042

w. G. 'TWYMAN MOLD FOR GLASHS CYLIiNDERS Filed June 8, 1925. s Sheets-Sheet s atented May 13, 1924.

UNITED STATES WILLIAM G. TWYMAN, 0F CANEY, KANSAS.

HOLD FOR GLASS CYLINDERS.

Application filed June 8,

To all whom it may co rwem Be it known that I, WILLIAM G. TWYMAN, a citizen of the United States, residing at Caney, in the county of Montgomery and State of Kansas, have invented certain new and useful Improvements inMolds. for Glass Cylinders, of which the following is a specification.

In carrying out the present invention, it is my purpose to provide a mold for use in the art of glass cylinder blowing that is extremely simple of construction, and highly efficient in operation, whereby glass cylinders may be blown of the same diameter that is otherwise impossible, without a mold of the present type.

A further purpose of the invention is the provision of such a mold that comprises a pair of semi-circular half sections hingedly joined together, one of said half sections adapted to be opened and closed in a novel, simple and expeditious manner for permitting of the positioning of the lump of semi-' molten glass therein as well as for permitting of the easy removal of the blown cylinder therefrom.

The nature and advantages of the invention will be better understood when the following detailed description is read in connection with the accompanying drawings, the invention residing in the construction, combination, and arrangement of parts as claimed.

In the drawings forming a art of this application, like numerals of re erence indicate similar parts in the several views, and wherein:

Figure 1 is a front elevation of my improved mold, together with its opening and closing mechanism. Figure 2 is an enlarged elevation of one side of the mold, together with its opening and closing mechanism, a portion of said mechanism being broken away.

Figure 3 is a top plan view thereof, and

Figure 4 is a perspective of a removable plate element, that is empl ed in conjunction with my improved mold:-

Referring to the drawings in detail, my improved mold, designated nerally 5 includes a pair of relatively e ongated semicircular half sections 6 and 7, respectively. The sections of this .mold are made of sheet material and are perforated at 8 for allow in the air to escape therefrom as the lass cy inder is being blown out to the wal of 1923. Serial No. 644,070.

the mold b the blower. The said mold sections 6 an 7 are hingedly joined together, through the medium of metal strips 9 that are pivoted to each other at 10 and carried by the mold section 6 are bracket.v elements 11,v whereby the mold may be secured to a wall A, or other appropriate support. Secured to the free edge of the mold section 7, and extending parallel therewith is an L- shaped bar 12, and carried by said L-bar adjacent the upper and lower ends thereof and projecting outwardly therefrom is an upper and lower pair of arms 13 and 14, respectively. Pivotally secured between said air of arms are the inner ends of arms 15 t at extend parallel with each other, and are in turn, rigidly secured at their opposite ends to a vertical bar 16. Pivotally secured at 17 to a point substantially intermediate the ends of said bar 16 is one end of a connecting link 18, the other end of this connecting end. This rocking lever 20 is in turn, pivotally connected at 21 to a. suitable sup ort B, and in view of this description, it wi l at once be apparent that when the bar 20 is rocked upon its pivot 21 in opposite directions, the mold section 7 .will be opened and closed with respect to the section 6, for allowin the insertion of the lump of molten glass lnto the mold, as well as a removal of the block cylinder.

The mold 5 is positioned u on the wall A or other support at a point s i htly above a platform C, and in operation, t e interior of the mold is pasted for allowing the glass cylinder to be rotated therein as the cylinder is being blown, thereby permitting the operator to make each and every glass cylinder the same diameter rwhichwou'ld otherwise be impossible without a mold. Before the lump of glass is placed within the mold, a substantially square shaped metal plate 22 is ositioned upon said support C beneath the ower end of the mold, which plate is also to be pasted for consequently preventing the glass from running out of the lower end of the mold. After the cylinder has been blown, the section 7 is swung open by the rocking lever 20 and the cylinder removed.

In view of the above description, it will at once be apparent that I have provided a highly useful form of mold for use in the art fglass cylinder blowing, and even though I have herein set forth the most practical embodiment of my invention with which I am joined together, means for opening and closfamiliar, it is nevertheless to be understood ing one of said half sections with respect to 'that minor changes may be made therein, the other, means for anchoring the other of without departing from the spirit and scope said half sections to a support, a platform 5 of the invention as claimed. a spaced beneath said mold and a removable l6 Having thus described my invention, plate adapted to be positioned between said what I claim as new, and desire to secure by mold and said platform. Letters-Patent, is: n In testimony whereof I afiix my signature.

A mold of the class described, a pair of 19 semi-cylindrical half sections hlngedly WILLIAM G. TWY MAN. 

